Alice McBrearty's mugshot after she was arrested for grooming the lad on Facebook and Instagram

McBrearty, who pleaded guilty to seven counts of sexual activity with a child while in a position of trust put her head in her hands and sobbed in the dock as Judge Sheelagh Canavan sentenced her on Friday.

Jailing her for 16 months, the judge said she had committed the "grossest breach of trust".

She said: "You engaged in a full-blown sexual relationship with a 15-year-old child.

"I accept he was consenting - what 15-year-old schoolboy would turn down such an attractive offer?"